US 11,924,556 B2
Automatic prediction of exposure of camera in projector-camera systems
Meghana Kiran Urs, Irvine, CA (US); Bharati Jha, Irvine, CA (US); and Alexander Sidenko, Irvine, CA (US)
Assigned to SUMMIT TECHNOLOGY LABORATORY, Irvine, CA (US)
Filed by Summit Technology Laboratory, Irvine, CA (US)
Filed on Jun. 24, 2022, as Appl. No. 17/849,517.
Prior Publication US 2023/0421910 A1, Dec. 28, 2023
Int. Cl. H04N 23/73 (2023.01); G06T 7/80 (2017.01); H04N 5/58 (2006.01)
CPC H04N 23/73 (2023.01) [G06T 7/80 (2017.01); H04N 5/58 (2013.01)] 29 Claims
OG exemplary drawing
 
1. A method for prediction of ambient light and adjustment of an exposure value of a camera (100) in order to capture a display of an input image, in response to said prediction, the method comprising:
a. displaying, by a display device (200), one or more reference images;
b. capturing, by the camera (100), the one or more reference images at one or more camera exposures to generate a plurality of calibration images;
c. predicting an optimal reference exposure and a corresponding optimal reference image based on a minimal saturation criterion applied to the plurality of calibration images;
d. estimating the ambient light at the optimal reference exposure;
e. identifying relative properties of an input image in comparison to the optimal reference image;
f. predicting an optimal exposure based on the relative properties of the input image, the ambient light and the optimal reference exposure;
g. adjusting the exposure value of the camera (100) based on the optimal exposure;
h. displaying by the display device (200) the input image; and
i. capturing, by the camera (100), the input image.